Johan george briegel



J. GQBRIEGEL. WATER TUBE BOILER.

2 Sheets-Sheet 1'.

(No Model.)

Patented Mar ATTORNEY WITNESSES m: mums PETERS co, Pnoroumcq WASHINGTON: 0.1:.

2 Sheets Sheet 2.

(No Model.)

J. G. BRIEGEL. WATER TUBE BOILER.

. Patented Mar. 29, 1898,.

WITNESSES HTTORN EYS THE Norms PETERS cu. PnoTo-umm WASHINGTON. u. c.

'NHED STATES ArnN'r JOHAN GEORGE BRIEGEL, OE PHILADELPHIA, PENI QSYLVANIA, ASSIGNOR OF ONE-FOURTH TO JULIUS KELLER, OF SAME PLACE.

WATER-TUBE BOILER.

SPECIFICATION forming part of Letters Patent 1\To.6 01,335, dated March 29, 1898.

Application filed November 30, 1897. $erial No. 660,192. (No model.)

To all whom it vnay concern:

Be it known that LJOHAN GEORGE BRIEGEL, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Galloway Water-Tube Boilers, which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates to water-tube boilers and it consists of a novel construction of detachable fire-tube and its adjuncts whereby said tube can be easily and expeditiously removed from the boiler for the purposes of inspection, repair, cleaning, &c., the fastening devices for said tube being removed from the maximum heat of the furnace.

It further consists of novel details of construction, all as will be hereinafter fully set forth, and particularly pointed out in the claims.

Figure 1 represents a longitudinal section of aboiler and its adjuncts embodying my invention. Fig. 2 represents a section on line m m, Fig. 1. Fig. 3 represents a vertical section of an upright boiler, showing another embodiment of the principle of my invention. Fig. t-represents a transverse section on line 1 y, Fig. 3.

Similar letters of reference indicatecorrespending parts in the figures.

Referring to the drawings, A designates a boiler having the outer shell B and fire-tube C, the latter being provided with the transversely-arranged water-tubes D. One end of the fire-tube has an angle-iron E secured thereto, the upturned flange F thereof being secured to the back plate or head G by the bolts H or similar fastening devices. The front extremity of the fire-tube O is secured to the head J in any suitable manner, said head being detachably secured at or near its outer periphery to the upright member K of the angle-iron L by means of the bolts or other fastening devices M, said angle-iron being se cured to the shell B in any suitable manner.

The operation is as follows: When it is desired to remove the fire-tube C for the purpose of inspection, repairs, &c., the bolts M and H are removed, after which the head J and the tube 0, attached thereto, can be simultaneously withdrawn. \Vhen it is desired to assemble the boiler again, the inner tube is placed in the position seen in Fig. 1 and I bridge,*firing-doors, ash-pit doors, steamdome, stack, and the other usual appurtenances.

In the constructions seen in Figs. 3 and 4 I have shown the principle of my invention as applicable to a water-tube boiler, N designating the boiler, the same consisting of the lower exterior'shell P, which is supported upon a suitable base and has attached to the upper portion thereof a flange of the angle-iron or bracket Q, the laterally-extending member R of which contacts with the laterally-extending member S of the angle-iron or bracket P, which is attached to the lower portion of the shell U,Which latter surrounds the upper portion of the boiler and has the topV attached thereto, the members It and S being held together by bolts R or other fastening devices.

X designates an angle-iron, angular ring, or bracket which is attached to the smokestack or outlet Z and has its laterally-extending member W in contact with the top V, the latter being secured to said member W by means of the bolts Y. 1

A designates the crown-sheet of the boiler, the same having the smoke outlet or stack Z attached thereto in any suitable manner, the inner shell B of the boiler depending from said crown-sheet and being secured to the lower portion or base of the boiler, whereby it will be seen that a water-leg G is formed which surrounds the fire-box, the latter being provided with an inclined grate E and the usual appurtenances, said grate having the firing-door F above the same.

' D designates an inwardly-extending p0r-.

tion of the inner shell B, whereby a waterholding chamber H is formed directly above the grate, said chamber serving to utilize the gases in the most effective manner by reason of its location relative to said grate.

Ico I J designates arms supported within the lower portion of the boiler, upon which is pivotally mounted the bar or support K, the upper portion of the latter sustaining the lower extremity of the grate E, while the lower-portion of the bar K has pivotally attached thereto an extremity of the shakingrod L, which latter is actuated from the exterior of the furnace.

M designates the ash-pit in the lower portion of the boiler, from which the ashes are removed in any suitable manner.

If desired, the boiler may be mounted on wheels N, as indicated by dotted lines, so as to be readily transported.

. the relative position of which will be understood from Figs. 3 and 4 The operation is as follows: When it is desired to obtain access to the interior of the boiler for any purpose, it is only necessary to remove the bolts R and Y, after which the top V and outer shell U can be readily removed simultaneously, and the tubes and other portions of the boiler are rendered accessible.

By locating the water-bridge H relative to the grate in the position indicated the most advantageous results are attained, since said bridge is always full of water and thus prevented from burning out.

Having thus described my invention, what I'claim as new, and desire to secure by Letters Patent, is

1. The combination of the exterior shell of e a boiler with a detachable front or outer head,

, tion of said tube and the back head of said boiler, whereby said tube can be readily removed according to requirements.

2. In a boiler, an outer shell having an angle-iron attached to the front portion thereof,

a front head detachably secured to said angleiron, and an inner fire-tube secured to said head, the rear end of said-fire-tube being at-.

tached to an an gle-iron, and the latter having a member detachably secured to the back head of said boiler, whereby said tube can be readily removed according to requirements.

3. In a boiler, an outer shell having an angle-iron attached to the front portion thereof, a front head detachably secured to said angleiron, and an inner fire-tube provided with transversely-arranged water-tubes, said firetube being secured to said head, and the rear end of said tube being attached to an angle-' iron, the latter having a member detachably secured to the back head of said boiler,whereby said tube can be readily removed.

4:. A boiler consisting of an upper and lower shell, fastening devices common to each of said shells, an inner shell suitably supported, a crown-sheet attached thereto, a stack or outlet extending from said crown-sheet, an angleiron or bracket and fastening devices common to said angle-iron stack and the top of the boiler.

5. A boiler having a lower exterior shell P provided with an angle-iron or fastening devices Q, an upper exterior shell U, provided with an angle-iron or similar fastening devices T, bolts common to the abutting flanges of said fastening devices, a top V attached to said outer shell, a stack for said boiler, an angle-iron or similar device attached to said stack, means for securing said top to a mem-' ber of said latter angle-iron, and a water-holding bridge H, attached to the inner shell of said boiler and extending laterally toward the grate thereof.

6. A boiler having in the lower portion thereof, an inclined grate, a water-holding bridge projecting from the inner portion of said boiler, the lower extremity of said grate being mounted upon a movable support, means for oscillating said support and an ash-pit located below said grate in combination with means for detaching the upper exterior portion of said boiler from the lower exterior portion thereof.

JOHAN GEORGE BRIEGEL.

Witnesses:

, JOHN A. WIEDERSHEIM, WM. 0. WIEDERSHEIM. 

